Current status of endoscopic submucosal dissection for the management of early gastric cancer: A Korean perspective

Table 1 Endoscopic mucosal resection/endoscopic submucosal dissection therapeutic outcomes

Author	Yr	n	Method	Complete resection (%)	Local recurrence (%)	Bleeding (%)	Perforation (%)
Lee	1996	19	Strip biopsy	37.8	28.6
Hyun	1996	20	Strip biopsy
Cheon	2000	28	Strip biopsy	64.3	3.6
Seong	2002	35	Strip biopsy	94.3	6.1
Hyun	2003	45	Strip biopsy	55.6	0.0	24.4	0.0
Kim	2000	20	EMR-L	85.0	5.9	0.0	0.0
Kim	2005	109	Strip biopsy, EMR-C, EMR-P	67.9	1.4	8.3	2.8
Youn	2006	149	Strip biopsy, EMR-C, EMR-L, ESD	84.6	4.0	22.8	1.3
Kim	2007	514	Strip biopsy, EMR-C, EMR-L, EMR-P, ESD	77.6	6.0	13.8	0.6
Jung	2007	360	EMR-P	82.8		10.6	1.1
Min	2009	103	EMR-P	75.7	0.0	3.9	1.9
Jung	2007	264	ESD	87.9		9.8	3.8
Kang	2008	456	ESD	80.3	0.0
Park	2008	434	ESD	77.4	1.8	8.1	2.3
Min	2009	243	ESD	88.9	0.0	5.3	4.5
Chung	2009	534	ESD	87.7		15.6	1.2

EMR: Endoscopic mucosal resection; ESD: Endoscopic submucosal dissection; EMR-C: EMR by cap-fitted panendoscope; EMR-L: EMR with ligation; EMR-P: Precutting followed by snare resection.

Table 2 Endoscopic submucosal dissection outcomes

Result of resection	n (%)
Complete resection	877 (87.7)
En bloc resection	953 (95.3)
Free margin of en bloc resection	901 (90.1)
Failure of en bloc resection	6 (0.6)
ESD time (min), mean ± SD	47.8 ± 38.3
Submucosal invasion of tumor	74 (7.4)
Lymphovascular invasion of tumor	30 (3.0)

ESD: Endoscopic submucosal dissection.